Rockwell Automation 1503 IntelliVAC Contactor Control Module - Series C and later - Manual (Page 41)

5-2 Monitoring and Troubleshooting
1503-UM052D-EN-P – June 2013
Module Status (cont.) If the processor has an internal fault, the LED will be Red, the outputs
will be cleared, and the processor must be reset (input power must be
cycled). If the reset is successful, the LED will be Green and the module
will respond to the control inputs. The input command must be toggled
before the module will respond to a new command (rising edge triggered).
For Series D, the Module Status LED is also used to indicate various
“Warning” conditions related to the contactor performance (see Table
5.B).
Module Status output relay has a normally open contact. The contact is
open during a Fault condition (LED red), and closed during a healthy
condition (LED green). The relay is open for some warning conditions,
but closed for less severe issues.
The module states are summarized in Tables 5.A and 5.B.
Contactor Status
The Contactor Status is indicated with a yellow LED that is off until a
CLOSE command is received. The yellow LED will stay on if the
contactor closes properly, until the contactor is opened. If the processor
has an internal fault, the LED will be red.
Contactor Status output relay has a normally open contact. The contact
is open when the contactor is open (LED off), and closed when the
contactor has received a close command (for 200 milliseconds) or if it is
closed (LED on).
The contactor states are summarized in Tables 5.A and 5.B.
I M P O R T A N T I M P O R T A N T
The LEDs are red/green types with both
sections ON to produce yellow. If viewed from
a sharp angle, you may see only green or red.
Please view from directly in front of the module
to ensure accurate color recognition.